The Skyhouse, which occupies four stories of an early skyscraper in Lower Manhattan, shows architect David Hotson manipulating the available space to include features such as a climbing column and tubular metal slide with which inhabitants can move between levels. The living space rises through all four stories and can be accessed with the climbing pole — safety ropes included — while the huge German-constructed slide takes you down from the attic right to the entrance. — theverge.com